/* ============================================================
   MLM Portal — základní styly
   Brand barvy se injektují přes brand_styles() v layoutech.
   Fallback hodnoty jsou tady jako :root default.
   ============================================================ */

:root {
    --brand-primary:      #3B6D11;
    --brand-primary-dark: #2D5408;
    --brand-primary-mid:  #C0DD97;
    --brand-primary-soft: #EAF3DE;
    --brand-secondary:    #97C459;
    --brand-dark:         #173404;
    --brand-bg:           #FCFBF7;
    --brand-font:         Inter, system-ui, -apple-system, sans-serif;

    /* Sémantické (neměnné) */
    --color-text-muted:   #5F5E5A;
    --color-success-bg:   #DCEBD8;
    --color-success-tx:   #2D5408;
    --color-pending-bg:   #FAEEDA;
    --color-pending-tx:   #854F0B;
    --color-info-bg:      #D8E5EB;
    --color-info-tx:      #1F4D5F;
    --color-error-bg:     #FCEBEB;
    --color-error-tx:     #A32D2D;
    --color-muted-bg:     #ECECEC;
    --color-card-hover:   var(--brand-bg);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--brand-font);
    background: var(--brand-bg);
    color: var(--brand-dark);
    font-size: 14px;
    line-height: 1.5;
    position: relative;
    min-height: 100vh;
}

/* Wrappery musí být nad ::before pozadím */
.app-content,
.admin-shell,
.login-shell {
    position: relative;
    z-index: 1;
}

/* Hlavička je úplně nad vším — kvůli dropdownům — a drží se nahoře při scrollu */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
}

a { color: var(--brand-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.app-header {
    background: #fff;
    border-bottom: 1px solid var(--brand-primary-soft);
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.app-logo { font-size: 18px; font-weight: 600; color: var(--brand-dark); }
.app-nav { display: flex; gap: 18px; }
.nav-item { color: var(--color-text-muted); padding: 6px 10px; border-radius: 6px; cursor: pointer; }
.nav-item.active { background: var(--brand-primary-soft); color: var(--brand-primary); font-weight: 600; }

.app-content { max-width: 1180px; margin: 24px auto; padding: 0 24px; }
.page-title { font-size: 22px; font-weight: 600; color: var(--brand-dark); margin: 0 0 4px; }
.page-sub { color: var(--color-text-muted); margin: 0 0 18px; font-size: 13px; }

/* Karty a panely */
.panel {
    background: #fff;
    border: 1px solid var(--brand-primary-soft);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}
.panel-title { font-size: 14px; font-weight: 600; color: var(--brand-dark); margin: 0 0 12px; }

/* Statistiky */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat { background: #fff; border: 1px solid var(--brand-primary-soft); border-radius: 8px; padding: 14px; }
.stat-label { font-size: 11px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.4px; font-weight: 600; }
.stat-value { font-size: 22px; font-weight: 700; color: var(--brand-dark); margin-top: 4px; }
.stat-delta { font-size: 11px; color: var(--color-text-muted); margin-top: 2px; }

/* Formuláře */
.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 12px; color: var(--color-text-muted); margin-bottom: 4px; font-weight: 600; }
.form-field input, .form-field select, .form-field textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--brand-primary-mid);
    border-radius: 6px; background: var(--brand-bg); font-size: 13px; color: var(--brand-dark);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
    outline: none; border-color: var(--brand-primary);
}

/* Tlačítka */
.btn { padding: 9px 16px; border-radius: 6px; font-size: 13px; cursor: pointer; border: none; font-weight: 600; }
.btn-primary { background: var(--brand-primary); color: #fff; }
.btn-primary:hover { background: var(--brand-primary-dark); }
.btn-secondary { background: #fff; color: var(--brand-primary); border: 1px solid var(--brand-primary); }
.btn-secondary:hover { background: var(--brand-primary-soft); }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { background: var(--brand-primary-soft); color: var(--brand-primary); }

/* Tabulky */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th { text-align: left; font-size: 11px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.4px; padding: 10px 12px; border-bottom: 1px solid var(--brand-primary-soft); }
.table td { padding: 12px; border-bottom: 1px solid var(--brand-primary-soft); color: var(--brand-dark); }
.table tr:hover { background: var(--color-card-hover); }

/* Pilule a badges */
.pill { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.pill-success { background: var(--color-success-bg); color: var(--color-success-tx); }
.pill-pending { background: var(--color-pending-bg); color: var(--color-pending-tx); }
.pill-muted   { background: var(--color-muted-bg);   color: var(--color-text-muted); }
.pill-info    { background: var(--color-info-bg);    color: var(--color-info-tx); }

/* Login */
.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--brand-primary-soft), var(--brand-bg)); }
.login-box { background: #fff; padding: 36px; border-radius: 12px; box-shadow: 0 4px 24px rgba(0,0,0,0.06); width: 400px; max-width: 90vw; }
.login-logo { text-align: center; font-size: 28px; color: var(--brand-primary); margin-bottom: 8px; }
.login-title { text-align: center; font-size: 18px; font-weight: 600; color: var(--brand-dark); margin: 0 0 24px; }
.login-error { background: var(--color-error-bg); color: var(--color-error-tx); padding: 10px; border-radius: 6px; margin-bottom: 12px; font-size: 12px; }
.login-hint { text-align: center; font-size: 11px; color: var(--color-text-muted); margin-top: 16px; line-height: 1.6; }

/* Admin */
.admin-shell { display: flex; min-height: 100vh; align-items: flex-start; }
.admin-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--brand-dark);
    color: #fff;
    padding: 18px 0;
    position: sticky;
    top: 0;
    align-self: flex-start;
    height: 100vh;
    overflow-y: auto;
}
.admin-sidebar-logo { padding: 0 18px 18px; font-weight: 600; font-size: 16px; }
.admin-menu-item {
    display: block;
    padding: 10px 18px;
    font-size: 13px;
    color: var(--brand-secondary);
    cursor: pointer;
    text-decoration: none;
    border-left: 3px solid transparent;
}
.admin-menu-item:hover { background: rgba(255,255,255,0.05); text-decoration: none; }
.admin-menu-item.active { background: var(--brand-primary); color: #fff; border-left-color: var(--brand-secondary); }
.admin-menu-group { padding: 16px 18px 4px; font-size: 10px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; color: rgba(255,255,255,0.38); }
.admin-menu-group:first-of-type { padding-top: 6px; }
.admin-main { flex: 1; padding: 24px; background: var(--brand-bg); min-width: 0; }

/* =============================================================================
   STICKY TOP - horní část stránky (statistiky, filtry, panely) zůstane fixní,
   tabulka/seznam pod tím se scrolluje.

   Použití:
     <div class="sticky-top">
        ... statistiky, filtry, info panely ...
     </div>
     ... tabulka / dlouhý obsah ...
   ============================================================================= */
.sticky-top {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--brand-bg, #FCFBF7);
    /* Vyrovnat padding kontextu aby pozadí přesáhlo i přes side padding */
    margin-left: -24px;
    margin-right: -24px;
    margin-bottom: 20px;
    padding: 8px 24px 14px 24px;
    /* Vizuální oddělení od scrollovaného obsahu */
    box-shadow: 0 6px 10px -6px rgba(23,52,4,0.18);
    border-bottom: 1px solid #EAF3DE;
}
/* Vnitřní odsazení obnovit u dětských elementů (kompenzace záporných margin) */
.sticky-top > * {
    margin-left: 0;
    margin-right: 0;
}
/* V member layoutu (app-content) musí sticky-top sedět POD horním headerem.
   Header má padding 14px nahoru/dolů + obsah ~32px = ~60px výška.
   Plus app-content má 24px margin-top => zarovnat k headeru přes negativní margin-top a top na výšce headeru. */
.app-content .sticky-top {
    top: 60px;  /* výška app-header */
    margin-top: -24px;  /* vyrušit margin app-content nahoře, aby sticky začínalo na headeru */
    padding-top: 24px;  /* místo margin top použijeme padding */
}